Reasoning about Gradual Changes of Topological Relationships
Proceedings of the International Conference GIS - From Space to Territory: Theories and Methods of Spatio-Temporal Reasoning on Theories and Methods of Spatio-Temporal Reasoning in Geographic Space
TiNA: a scheme for temporal coherency-aware in-network aggregation
Proceedings of the 3rd ACM international workshop on Data engineering for wireless and mobile access
Report from the first workshop on geo sensor networks
ACM SIGMOD Record
Constraint chaining: on energy-efficient continuous monitoring in sensor networks
Proceedings of the 2006 ACM SIGMOD international conference on Management of data
Approximate isocontours and spatial summaries for sensor networks
Proceedings of the 6th international conference on Information processing in sensor networks
Detecting Topological Change Using a Wireless Sensor Network
GIScience '08 Proceedings of the 5th international conference on Geographic Information Science
Detecting basic topological changes in sensor networks by local aggregation
Proceedings of the 16th ACM SIGSPATIAL international conference on Advances in geographic information systems
Tracking deformable 2D objects in wireless sensor networks
Proceedings of the 16th ACM SIGSPATIAL international conference on Advances in geographic information systems
Event-based topology for dynamic planar areal objects
International Journal of Geographical Information Science
Specifying and detecting topological changes to an areal object
Specifying and detecting topological changes to an areal object
Proceedings of the 1st ACM SIGSPATIAL International Workshop on Spatial Semantics and Ontologies
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Topological changes to regions, such as merging/splitting and hole formation/elimination, are significant events in their evolution. Information about such salient changes is useful in many applications. The research reported in this paper provides theoretical foundations for such topological change detection in sensor networks. A local tree model is proposed in the spatial domain, based on which a set of types of topological changes is specified. We also present a sensor network framework which captures the necessary information required by the tree model. Both the local tree model and the sensor network framework form the foundations for detection approaches that allow sensor networks to report topological changes.